CN107759139A - Highly anti-fatigue cracking resistance water-permeating pitch mixed material and preparation method thereof - Google Patents
Highly anti-fatigue cracking resistance water-permeating pitch mixed material and preparation method thereof Download PDFInfo
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- CN107759139A CN107759139A CN201711094225.8A CN201711094225A CN107759139A CN 107759139 A CN107759139 A CN 107759139A CN 201711094225 A CN201711094225 A CN 201711094225A CN 107759139 A CN107759139 A CN 107759139A
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1059—Controlling the operations; Devices solely for supplying or proportioning the ingredients
- E01C19/1068—Supplying or proportioning the ingredients
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention discloses a kind of highly anti-fatigue cracking resistance water-permeating pitch mixed material and preparation method.The composition and mass content of compound be：SBS modified pitch 4.4%~4.7%；Be chopped basalt fibre 0.274%~0.299%；Mineral aggregate 93.1%~95.3%；The high sticks 0.296%~0.4% of HVA；Preparation method includes：(10) pitch melts：Finished product SBS modified pitch is melted in 170 ± 5 DEG C of baking ovens；(20) mineral aggregate preheats：Thickness in mineral aggregate is gathered materials with miberal powder and preheats more than 6h respectively at 190 ± 5 DEG C；(30) mixing：Thickness is gathered materials and added in the mix pot of 170 ± 5 DEG C of mix temperature, mix, then the chopped high stick of basalt fibre and HVA is mixed, mix, secondly add SBS modified pitch, mix, the miberal powder after finally incorporation preheating, mix.The asphalt of the present invention, good endurance, production cost are low, safeguard that funds save.
Description
Technical field
The invention belongs to highway structure investigation of materials field, particularly a kind of good endurance, production cost are low, safeguard that funds save
Highly anti-fatigue cracking resistance water-permeating pitch mixed material and preparation method thereof.
Background technology
Open-shelf range (Open Graded Friction Course, abbreviation OGFC) refers to use large porosity
Asphalt making, road table rainwater can be drained inside it rapidly, had and integrated antiskid, noise reduction, anti-dazzle, seep water
Road pavement material, be typically used as layer or upper layer and middle surface layer above drainage pavement.Pushed away with the application of drainage pavement
Extensively, as the most important surface material of drainage pavement, OGFC usage amount sharp increase.
With developing rapidly for China's economy, it is bright that heavy load, high flow capacity and channelization is presented in the traffic of highway
The features such as aobvious, to the quality requirement more and more higher of bituminous paving.In addition, freezing disaster, height thermoperiod alternating and acid-rain corrosion
Bituminous paving can be also set substantial amounts of early disease phenomenon occur etc. natural phenomena.Due to there is asphalt material high temperature easily to trickle,
Low temperature, which is easily hardened, to become fragile and the shortcomings of response to temperature is big, seriously limits application of the asphalt material in engineering, therefore to pitch
It is modified, improving the pavement performance of pitch turns into the urgent task of research.Fibre modifier is because it is to the significant modification of pitch
Effect causes the extensive concern of researcher, wherein studying more has basalt fibre, lignin fibre, polyester fine
Dimension, glass fibre etc..
Water-permeating pitch mixed material is significant saturating with it as a kind of open gradation asphalt with the space that is interconnected
The function of water, good antiskid performance and reduction pavement temperature is at home and abroad widely applied.At present, China has put into effect
Two relevant porous pavement pavement performances require specification, i.e.,《Asphalt pavement design criterion》(JTGD50-2006) and《Highway asphalt
Pavement construction technical specification》(JTGF40-2004).The voidage of water-permeating pitch mixed material is more than 18%, and rainwater can pass through face
Table reduces surface gathered water, contact of the fortified tyre with road surface by the rapid discharge path table of pumping equipment, while eliminates driving and splash
Water smoke, improve visibility, improve road surface running vehicle security；Voidage is larger so that and road surface has coarse macro-texture, from
And frictional behaviour is improved, automobile is had higher anti-slide performance when running at high speed；
But at the same time, water-permeating pitch mixed material still suffers from more problem in practice, mainly has：
1st, durability is poor, because its voidage is big, so easily being corroded by water, makes asphalt membrane aging, accelerates road surface
Damage；
2nd, production cost is high, and water-permeating pitch mixed material uses high-viscosity modified asphalt, cost of raw material height；Mixing time ratio
Plain asphalt compound is grown, and it is higher than plain asphalt compound to mix and stir temperature, so production cost is high；
3rd, maintenance cost is high, by the load action of vehicle during water-permeating pitch mixed material summer use, easily produces
Rut.
The content of the invention
It is an object of the invention to provide a kind of highly anti-fatigue cracking resistance water-permeating pitch mixed material, good endurance, it is produced into
This is low, maintenance funds save.
Another object of the present invention is to provide the highly anti-fatigue that a kind of good endurance, production cost be low, maintenance funds save
The preparation method of cracking resistance water-permeating pitch mixed material.
The technical scheme for realizing the object of the invention is：
A kind of highly anti-fatigue cracking resistance water-permeating pitch mixed material, it is formed and mass content is：
SBS modified pitch 4.4%~4.7%；
Be chopped basalt fibre 0.274%~0.299%；
Mineral aggregate 93.1%~95.3%；
The high sticks 0.296%~0.4% of HVA.
The technical scheme for realizing another object of the present invention is：
A kind of preparation method of highly anti-fatigue cracking resistance water-permeating pitch mixed material, comprises the following steps：
(10) pitch melts：Finished product SBS modified pitch is heated to molten condition in 170 ± 5 DEG C of baking ovens, insulation is standby
With；
(20) mineral aggregate preheats：Thickness in mineral aggregate is gathered materials with miberal powder and preheats more than 6h respectively at 190 ± 5 DEG C；
(30) mixing：Mix pot is heated to 170 ± 5 DEG C of mix temperature, first the thickness after preheating gathered materials addition
In mix pot, 15~18s of mix, then the chopped high stick of basalt fibre and HVA is mixed, mix 90s, it is standby secondly to add insulation
SBS modified pitch, 90~95s of mix, finally incorporation preheating after miberal powder, 90~95s of mix, obtain highly anti-fatigue cracking resistance
Water-permeating pitch mixed material.
Compared with prior art, the present invention has advantage with following：
1st, good endurance：The present invention adds chopped basalt fibre in described water-permeating pitch mixed material, to strengthen
The anti-fatigue performance of water-permeating pitch mixed material, the exposure or rain drop erosion of the either southern sun, sent out all without destroying with this
Road surface made of bright described compound, surface evenness is good, and being capable of prolonging service life of pavement；
2nd, production cost is low, safeguards that funds save：The water-permeating pitch mixed material of highly anti-fatigue cracking performance of the present invention,
Performance is improved using economical and practical chopped basalt fibre, reduces the cost of bituminous paving.
Embodiment
With reference to specific embodiment, the present invention is further described.
Highly anti-fatigue cracking resistance water-permeating pitch mixed material of the present invention, it is formed and mass content is：
SBS modified pitch 4.4%~4.7%；
Be chopped basalt fibre 0.274%~0.299%；
Mineral aggregate 93.1%~95.3%；
The high sticks 0.296%~0.4% of HVA.
Preferably, the mineral aggregate gathers materials and miberal powder including thickness, wherein, miberal powder accounts for the 2% of mineral aggregate gross mass；Thickness is gathered materials
No. 1 material, No. 2 material, No. 3 material and No. 4 material including accounting for mineral aggregate gross mass 33%, 47%, 5.5% and 12.5% respectively.
The coarse aggregate that No. 1 material is 10~20mm of particle diameter；
The coarse aggregate that No. 2 material are 5~10mm of particle diameter；
The coarse aggregate that No. 3 material are 3~5mm of particle diameter；
The fine aggregate that No. 4 material are 0~3mm of particle diameter；
Preferably, thickness material of gathering materials is basalt, and thickness is gathered materials polishing value >=39PSV, and miberal powder is not more than for granularity
0.075mm limestone powder.
Preferably, the chopped basalt fibre length is 9mm.
The bitumen aggregate ratio of mineral aggregate and SBS modified pitch is the high sticks of 4.9%, HVA and the ratio of SBS modified pitch quality is
10:90。
Preferably, the overall grading limit of the mineral aggregate is as follows：
The preparation method of highly anti-fatigue cracking resistance water-permeating pitch mixed material of the present invention, comprises the following steps：
(10) pitch melts：Finished product SBS modified pitch is heated to molten condition in 170 ± 5 DEG C of baking ovens, insulation is standby
With；
(20) mineral aggregate preheats：Thickness in mineral aggregate is gathered materials with miberal powder and preheats more than 6h respectively at 190 ± 5 DEG C；
(30) mixing：Mix pot is heated to 170 ± 5 DEG C of mix temperature, first the thickness after preheating gathered materials addition
In mix pot, 15~18s of mix, then the chopped high stick of basalt fibre and HVA is mixed, mix 90s, it is standby secondly to add insulation
SBS modified pitch, 90~95s of mix, finally incorporation preheating after miberal powder, 90~95s of mix, obtain highly anti-fatigue cracking resistance
Water-permeating pitch mixed material.
Chopped basalt fibre is the novel high-performance asphalt mixed material modifier occurred in recent years, and it is to be sprayed by volcano
The natural basalt formed is sent out as raw material, is added in melting furnaces after being crushed, after being melted at 1450 DEG C~1500 DEG C, leads to
The continuous fiber of platinum-rhodium alloy bushing Defect formation is crossed, because basalt is extensive in distributed in nature, and diagenesis speed
Degree is fast, calls its " inexhaustible ".Also, in the whole production process of basalt fibre, without industrial wastewater, give up
The generation of gas and other industrial refuses.
Embodiment 1：
Finished product SBS modified pitch is first heated to molten condition in 165 DEG C of baking ovens, insulation is standby in 195 DEG C of baking ovens
Preheating 25872g thicknesses are gathered materials and 528g miberal powders (granularity is below 0.075mm limestone) more than 6h, and mix pot is heated
To 170 DEG C of mix temperature, then the 11760g thicknesses after preheating are gathered materials, and (wherein 1# material, 2# material, 3# expect the quality with 4# material
Respectively 8712g, 12408g, 1452g, 3300g) add mix pot mix 15s, mix 79.2g chopped basalt fibre and
The 144.3g high stick mix 90s of HVA, the standby SBS modified pitch mix 90s of the above-mentioned insulations of 1298.3g are added, mix pre-add
528g miberal powder mix 90s after heat, with rolling forming machine roller-compaction, the chopped basalt fibre of a kind of incorporation for being made described is saturating
Bituminous grout compound is molded rut plate test specimen；The pitch bitumen aggregate ratio is 4.9%.
Described in water-permeating pitch mixed material (mixing the chopped basalt fibres of 9mm) and comparative example 1-2 described in the embodiment of the present invention 1
The four-point bending test result of fatigue life of other types water-permeating pitch mixed material be shown in Table 1.
Comparative example 1：
Water-permeating pitch mixed material (not mixing chopped basalt fibre) refers to that water-permeating pitch mixed material does not mix the chopped Black Warrior
Rock fiber.Not adding chopped basalt fibre does not influence the mix-design of compound, does not change pitch under any volume
The grading of compound, it is only necessary to be finely adjusted according to being actually needed to bitumen aggregate ratio, its asphalt content ratio reduces 0.2% when adding fiber
The preparation method of above-mentioned water-permeating pitch mixed material, comprises the following steps：
(1) finished product SBS modified pitch is first heated to molten condition in 170 ± 5 DEG C of baking ovens, insulation is standby；
(2) gather materials and more than miberal powder 6h respectively at the thickness in preheating mineral aggregate at 190 ± 5 DEG C；
(3) mix pot is heated to 170 ± 5 DEG C of mix temperature, first the thickness after preheating, which is gathered materials, adds in mix pot
Mix 15-18s, then the high stick mix 90s of HVA are mixed, add step (1) and be incubated standby SBS modified pitch mixs 90-
95s, finally the miberal powder mix 90-95s after incorporation preheating, is made described water-permeating pitch mixed material.
Comparative example 2：
Water-permeating pitch mixed material (the chopped basalt fibre 6mm of incorporation) refers to that the chopped basalt of asphalt incorporation is fine
Tie up as 6mm.
The preparation method of above-mentioned water-permeating pitch mixed material, comprises the following steps：
(1) finished product SBS modified pitch is first heated to molten condition in 170 ± 5 DEG C of baking ovens, insulation is standby；
(2) gather materials and more than miberal powder 6h respectively at the thickness in preheating mineral aggregate at 190 ± 5 DEG C；
(3) mix pot is heated to 170 ± 5 DEG C of mix temperature, first the thickness after preheating, which is gathered materials, adds in mix pot
Mix 15-18s, then the high stick mix 90s of chopped basalt fibre and HVA is mixed, add step (1) and be incubated standby SBS
Modified pitch mix 90-95s, finally the miberal powder mix 90-95s after incorporation preheating, is made described water-permeating pitch mixed material.
The different water-permeating pitch mixed material fatigue test results of table 1
As it can be seen from table 1 the anti-fatigue performance of contrast compound not of the same race, all with the chopped basalt fibre of incorporation
Improve, the fatigue strength sequence of compound is followed successively by：Water-permeating pitch mixed material (mixing the chopped basalt fibres of 9mm) ＞ pervious asphalts
Compound (mix 6mm be chopped basalt fibre) ＞ water-permeating pitch mixed materials (not mixing chopped basalt fibre) on the whole, with
The incorporation of chopped basalt fibre, anti-fatigue performance increases, but mixes the anti-fatigue performance of the chopped basalt fibres of 9mm
It is more preferable and meet specification.
The present invention is described by way of example above, but the invention is not restricted to above-mentioned specific embodiment, it is all to be based on
Any changes or modifications that the present invention is done belong to the scope of protection of present invention.
Claims (7)
1. a kind of highly anti-fatigue cracking resistance water-permeating pitch mixed material, it is formed and mass content is：
SBS modified pitch 4.4%~4.7%；
Be chopped basalt fibre 0.274%~0.299%；
Mineral aggregate 93.1%~95.3%；
The high sticks 0.296%~0.4% of HVA.
2. water-permeating pitch mixed material as claimed in claim 1, it is characterised in that：
The mineral aggregate gathers materials including thickness and miberal powder, wherein, miberal powder accounts for the 2% of mineral aggregate gross mass；Thickness is gathered materials including accounting for respectively
No. 1 material, No. 2 material, No. 3 material and No. 4 material of mineral aggregate gross mass 33%, 47%, 5.5% and 12.5%.
3. water-permeating pitch mixed material as claimed in claim 2, it is characterised in that：
The coarse aggregate that No. 1 material is 10~20mm of particle diameter；
The coarse aggregate that No. 2 material are 5~10mm of particle diameter；
The coarse aggregate that No. 3 material are 3~5mm of particle diameter；
The fine aggregate that No. 4 material are 0~3mm of particle diameter；
Thickness material of gathering materials is basalt, and thickness is gathered materials polishing value >=39PSV, and miberal powder is the lime that granularity is not more than 0.075mm
Rock dust body.
4. water-permeating pitch mixed material as claimed in claim 1, it is characterised in that：
The chopped basalt fibre length is 9mm.
5. water-permeating pitch mixed material as claimed in claim 1, it is characterised in that：
The bitumen aggregate ratio of mineral aggregate and SBS modified pitch is the high sticks of 4.9%, HVA and the ratio of SBS modified pitch quality is 10:90.
6. water-permeating pitch mixed material as claimed in claim 1, it is characterised in that：
The overall grading limit of the mineral aggregate is as follows：
7. a kind of preparation method of highly anti-fatigue cracking resistance water-permeating pitch mixed material as described in one of claim 1 to 6, it is special
Sign is, comprises the following steps：
(10) pitch melts：Finished product SBS modified pitch is heated to molten condition in 170 ± 5 DEG C of baking ovens, insulation is standby；
(20) mineral aggregate preheats：Thickness in mineral aggregate is gathered materials with miberal powder and preheats more than 6h respectively at 190 ± 5 DEG C；
(30) mixing：Mix pot is heated to 170 ± 5 DEG C of mix temperature, first the thickness after preheating, which is gathered materials, adds mix
In pot, 15~18s of mix, then the chopped high stick of basalt fibre and HVA is mixed, mix 90s, it is standby secondly to add insulation
SBS modified pitch, 90~95s of mix, the miberal powder after finally incorporation preheating, 90~95s of mix, it is saturating to obtain highly anti-fatigue cracking resistance
Bituminous grout compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711094225.8A CN107759139A (en) | 2017-11-09 | 2017-11-09 | Highly anti-fatigue cracking resistance water-permeating pitch mixed material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711094225.8A CN107759139A (en) | 2017-11-09 | 2017-11-09 | Highly anti-fatigue cracking resistance water-permeating pitch mixed material and preparation method thereof |
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| CN107759139A true CN107759139A (en) | 2018-03-06 |
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ID=61273806
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|---|---|---|---|
| CN201711094225.8A Pending CN107759139A (en) | 2017-11-09 | 2017-11-09 | Highly anti-fatigue cracking resistance water-permeating pitch mixed material and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113045248A (en) * | 2021-03-09 | 2021-06-29 | 中路高科(北京)公路技术有限公司 | Functional composite asphalt mixture for long and large longitudinal slope and preparation method thereof |
| CN117024040A (en) * | 2023-08-17 | 2023-11-10 | 保利长大工程有限公司 | High-performance drainage asphalt mixture and drainage pavement paving method thereof |
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| CN107188460A (en) * | 2017-06-02 | 2017-09-22 | 扬州大学 | A kind of preparation method for mixing the asphalts of basalt fibre OGFC 13 that are chopped |
| CN107188461A (en) * | 2017-06-02 | 2017-09-22 | 扬州大学 | Inspire confidence in the preparation method of basalt fibre water-permeating pitch mixed material in a kind of incorporation North America |
| CN107265926A (en) * | 2017-06-02 | 2017-10-20 | 扬州大学 | Inspire confidence in basalt fibre water-permeating pitch mixed material in one kind incorporation North America |
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2017
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| CN105819751A (en) * | 2016-04-08 | 2016-08-03 | 扬州大学 | Preparation method of composite modified bituminous mixture with high fatigue crack resistance |
| CN105859191A (en) * | 2016-04-08 | 2016-08-17 | 扬州大学 | Composite modified asphalt mixture with high fatigue cracking resistance |
| CN107117871A (en) * | 2017-06-02 | 2017-09-01 | 扬州大学 | The chopped asphalts of basalt fibre OGFC 13 of one kind incorporation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113045248A (en) * | 2021-03-09 | 2021-06-29 | 中路高科(北京)公路技术有限公司 | Functional composite asphalt mixture for long and large longitudinal slope and preparation method thereof |
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